Home / 5,641.12-8,459.33-2,130.51

Finding the Fourth Proportional to 5,641.12, 8,459.33 and 2,130.51

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Solution

The fourth proportional to 5,641.12, 8,459.33 and 2,130.51 is: 3,194.88

Step by Step Solution

  1. Step 1: Write the proportion equation
    5,641.12 : 8,459.33 = 2,130.51 : x
  2. Step 2: Convert to fraction form
    5,641.12/8,459.33 = 2,130.51/x
  3. Step 3: Cross multiply
    5,641.12x = 8,459.33 × 2,130.51
  4. Step 4: Simplify right side
    5,641.12x = 18,022,676.51
  5. Step 5: Solve for x
    x = 18,022,676.51/5,641.12
  6. Step 6: Final answer
    x = 3,194.88

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Why These Related Problems?

These problems maintain the same ratio (1.50) or explore similar proportional relationships. Practicing with related ratios helps build understanding of proportional relationships.